Same as in Fig. A.1 for NGC 2617 (data taken from F18). To extend the spectral coverage of the variance spectra, we also considered light curves in the r, i, and z−bands for this source (data from the same source). For this reason, we also plot the r−band light curve in this figure. The segments we used to compute the excess variance in the i and z−band light curves are very similar to the ones indicated in the r−band light curve.